[He can see the way Matt struggles to find his words, knows him well enough to know that when he gets like this, anger is the easiest for him. It scares him a little, but he's not going anywhere. He's not going to shy away. This is important and worth pushing for.]

We don't have to do anything. Just... Don't try to convince me to get back with Simon, yeah? That's my decision. Has nothing to do with you. Or at least not ultimately. Being with him when I'm in love with you isn't fair. Doesn't matter if you and I ever... It's just not fair to him. Couldn't do it.